Right Onsen › Gunma › Numata
Jizo Onsen UNIQUE
3.8★ · 471 Google ratings · Numata, Gunma · 地蔵温泉 ゆにーいく
✓ Private day-use bath✓ Natural hot-spring water✓ Free-flowing source water✓ Outdoor bath✓ Rest area✓ Restaurant
Before you go
Can you bathe here?
Price
¥850Pricing appears tiered by day/time: a 2026 review cites 850 yen, a holiday visit cites 1000 yen, and a 2025 review cites 750 yen weekday/1000 yen weekend for a 3-hour block -- the fee is not a single fixed number.stated by 3 visitors · Dec 2025 – Aug 2026
Hours
13:00–22:00 · closed Wednesdayfrom the facility listing
Tattoos
Not known · call aheadno policy stated in the 35 recent reviews we read or on the facility's website
Watch out
Payment
Two reviewers confirm the facility accepts cash only for both bathing and dining, catching some visitors off guard.
stated by 2 visitors · Dec 2025 – Feb 2026The bath
What you’ll find
A modern, recently renovated super-sento-style day-use onsen with regular and salt saunas, cold bath, outdoor bath, a well-regarded restaurant/ice-cream counter, and even cottage camping/glamping, but paid for cash-only and marked by repeated complaints of inconsistent, sometimes rude front-of-house service.
Outdoor bath
✓ YesAn outdoor bath is confirmed by many reviewers as a highlight.stated by 10 visitors · Oct 2025 – Aug 2026
Indoor baths
2Two indoor tubs (hot and not-hot) are described.stated by 2 visitors · Feb 2026 – Aug 2026
Sauna
✓ YesBoth a regular high-heat sauna and a weekend-only cypress-lined salt sauna are offered.stated by 10 visitors · Nov 2025 – Aug 2026
Cold bath
✓ YesA cold plunge bath is available near the sauna area.stated by 2 visitors · Nov 2025 – May 2026
Restaurant
✓ YesAn on-site restaurant/cafe and ice cream counter are well liked, though service can be slow (one reviewer waited 30+ minutes for a beer order).stated by 10 visitors · Oct 2025 – Aug 2026
Lodging
✓ YesOn-site cottage camping/glamping with air-conditioned sleeping is available alongside day bathing.stated by 2 visitors · Nov 2025 – May 2026
The water
Spring type
Chloride (slightly salty)Two reviewers independently describe the water as colorless and slightly salty.stated by 2 visitors · Nov 2025 – Jul 2026
Practical
What to bring
Payment
Cash onlyTwo reviewers confirm the facility accepts cash only for both bathing and dining, catching some visitors off guard.stated by 2 visitors · Dec 2025 – Feb 2026
Guide
What visitors add
Outdoor bath & sauna
There is an open-air bath (2 indoor tubs + 1 outdoor per one reviewer; at least 6 distinct reviews confirm the rotenburo, one noting it runs lukewarm and one that sitting stones are placed in it), plus a hot sauna, cold plunges (one indoors, one beside the outdoor salt sauna), and outdoor rest chairs for air bathing.
stated by 8 visitors · Nov 2025 – Jul 2026Towels, soap & lockers
Wash facilities include unusual shower heads — carbonated and micro-bubble (Mirable) showers per 2 reviewers; one reviewer counted 10 wash stations and experienced waits; the changing room feels cramped on busy ski-season evenings per another. Tap water is not potable but a drinking-water dispenser is provided, per one reviewer. Free post-bath treats appear seasonally (sesame dumplings and tea for one reviewer; iced coffee and apple pie for another).
stated by 7 visitors · Nov 2025 – Jun 2026Staffing
Staffed facility with polarized service reports: 4 distinct reviews praise friendly, polite (mostly young) staff, while 3 distinct reviews describe bad experiences — a rude older female clerk, front-desk staff ignoring a customer plus an unannounced 100-yen takeout charge, and a forgotten food order blamed on understaffing.
stated by 7 visitors · Oct 2025 – Aug 2026Outdoor bath & sauna
A salt sauna (interior fully hinoki-lined) operates on weekends/holidays only per one June 2026 reviewer; 2 other reviewers praise the salt sauna (one noting its floor mats were replaced with chairs in a renovation). Main-sauna temperature reports conflict: 'blazing hot' (Aug 2026) and 'high temperature' (Jun 2026) versus 'lukewarm' (Nov 2025). Aufguss (hot-wave) events are held, per one enthusiastic May 2026 reviewer.
stated by 6 visitors · Nov 2025 – Aug 2026The water
The water is colorless and transparent with a slight saltiness per 2 independent reviewers; one found no chlorine smell, one calls the water unremarkable, and tub temperatures span a hotter and a milder indoor tub (per one reviewer) with a lukewarm rotenburo (per another).
stated by 5 visitors · Nov 2025 – Aug 2026Price
Recent prices per individual reviewers: 850 yen adult / 500 yen from age 3 (Aug 2026); 1000 yen holiday rate (Aug 2026); a Dec 2025 reviewer states weekends/holidays 1000 yen and weekdays 750 yen for a 3-hour slot, complains entry is time-limited rather than free-time, and notes a December promotion adding an hour with a meal. Books of multi-visit tickets (kaisuken) exist per one reviewer.
stated by 4 visitors · Dec 2025 – Aug 2026Timing
When to go
Quietest Friday around 13:00; busiest Saturday around 18:00. Measured by Google over past visits, not a forecast.
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Quiet Busy
| Day | Hours |
|---|---|
| Monday | 13:00–22:00 |
| Tuesday | 13:00–22:00 |
| Wednesday | Closed |
| Thursday | 13:00–22:00 |
| Friday | 13:00–22:00 |
| Saturday | 13:00–22:00 |
| Sunday | 13:00–22:00 |
Closed Wednesday.
Practical
Plan your visit
📍 3435 Usunemachi, Numata, Gunma 378-0031
🚃 Numata station, 0.7 km
📞 +81278-22-8448
📋 Show at the counter: 地蔵温泉 ゆにーいく
Nearby
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